Aligning workload control theory and practice: lot splitting and operation overlapping issues

Nuno O. Fernandes, Martin J. Land and S. Carmo-Silva

International Journal of Production Research, 2016, vol. 54, issue 10, 2965-2975

Abstract: This paper addresses the problem of lot splitting in the context of workload control (WLC). Past studies on WLC assumed that jobs released to the shop floor proceed through the different stages of processing without being split. However, in practice, large jobs are often split into smaller transfer sublots so that they can move more quickly and independently through the production process and allow operations overlapping relating to the same job. This paper assesses the performance of different lot splitting policies for job release and dispatching strategies under lot splitting. A new dispatching rule was designed to specifically take advantage of lot splitting and operations overlapping in the context of WLC. Discrete-event simulation is used to assess system performance in relation to the ability to provide shorter delivery times and on time deliveries. Results highlight the importance of releasing the sublots of the same job together and demonstrate that combining an effective lot splitting policy with an appropriate dispatching rule can enhance the performance of production systems.

Date: 2016
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Citations: View citations in EconPapers (5)

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DOI: 10.1080/00207543.2016.1143134

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